National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Farmington Airport (KFAM)

Lat: 37.77°NLon: 90.43°WElev: 945ft.

Fair

82°F

28°C

Humidity 79%
Wind Speed S 3 mph
Barometer 30.11 in (1019.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 27 Jul 10:56 am CDT
Extended Forecast for

Potosi MO

Heat Advisory July 27, 11:37am until July 29, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 27, 11:37am until July 29, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Today

    High: 90 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 73. South wind around 5 mph becoming light and variable. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. Heat index values as high as 105. West wind 3 to 5 mph.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Calm wind.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 90. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 73. South wind around 5 mph becoming light and variable. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 96. Heat index values as high as 105. West wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 74. Calm wind.
Tuesday
Sunny and hot, with a high near 99. Calm wind.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 70.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 82.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 61.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potosi MO
 37.95°N 90.8°W (Elev. 892 ft)
Last Update:
11:21 am CDT Jul 27, 2025
Forecast Valid:
11am CDT Jul 27, 2025-6pm CDT Aug 2, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation